Conditional average method for passive scalar transport

Authors
Yang, TJ Kim, CB
Citation
Tj. Yang et Cb. Kim, Conditional average method for passive scalar transport, J KOR PHYS, 35(6), 1999, pp. L459-L462
Citations number
10
Categorie Soggetti
Physics
Journal title
JOURNAL OF THE KOREAN PHYSICAL SOCIETY
ISSN journal
03744884 → ACNP
Volume
35
Issue
6
Year of publication
1999
Pages
L459 - L462
Database
ISI
SICI code
0374-4884(199912)35:6<L459:CAMFPS>2.0.ZU;2-X
Abstract
The problem of reducing the number of degrees of freedom necessary to descr ibe fluid turbulence by using conditional average is applied to the problem of turbulent passive scalar transport. We derive a large-scale equation of motion that exhibits form invariance under a renormalization group transfo rmation with an effective diffusivity. The eddy Prandtl number is found to be Pr similar to 0.6 within the restricted region where the value of the Ob ukhov-Corrsin constant is 1.02 +/- 0.01.